Abstract
Embodiments of the disclosure provide a transmitter (100) a receiver and methods of operating a transmitter and a receiver. In one embodiment the transmitter is for use with N T transmit antennas and includes a precoder unit (104) configured to precode data for transmission using a precoding matrix selected from a nested codebook (105) wherein the nested codebook provides codebooks corresponding to different transmission layers that are derived from column subsets of multiple NT X NTprecoding matrices. The transmitter also includes a transmit unit (106) configured to transmit the precoded data. In another embodiment the receiver includes a receive unit configured to receive precoded data. The receiver also includes a precoder selection unit configured to select a precoding matrix from a nested codebook for the precoded data wherein the nested codebook provides codebooks corresponding to different transmission layers that are derived from column subsets of multiple NT X NT precoding matrices.
Technologies
Resource configuration
Product
Use Cases
Wireless communication
Services
Claim
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Note:
The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.